Lines Matching refs:null
46 * @var array<ParseTree>|null
50 /** @var Token|null */
53 /** @var Token|null */
58 * completed, this is `null`.
60 * @var RecognitionException|null
82 $this->children = null;
133 if ($this->children === null) {
149 if ($this->children !== null) {
155 * @return RuleContext|null
163 * @return ParseTree|null
165 public function getChild(int $i, ?string $type = null) : ?Tree
167 if ($this->children === null || $i < 0 || $i >= \count($this->children)) {
168 return null;
171 if ($type === null) {
185 return null;
190 if ($this->children === null || $i < 0 || $i >= \count($this->children)) {
191 return null;
204 return null;
212 if ($this->children === null) {
236 if ($this->children=== null) {
252 return $this->children !== null ? \count($this->children) : 0;
257 if ($this->start === null || $this->stop === null) {